Subsequences of frames

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Every frame in Hilbert space contains a subsequence equivalent to an orthogonal basis. If a frame is n-dimensional then this subsequence has length (1 - ε) n. On the other hand, there is a frame which does not contain bases with brackets.
16 pages, LaTeX

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Functional Analysis, 46C05; 46B07

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http://salesiana.dossiersoluciones.com/handle/123456789/78114

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9902097
 http://arxiv.org/abs/math/9902097

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arXiv